Brick-kiln



(No Model.) 5 SheetS`-Sheet 2.

' F. P. MEYBNBERG.

BRICK KILN.

No. 412.399. I y'Pa/sented Oct. 8, 1889.

n. Ftrzns. Mmmm. www@ n. a

(No Model.) I 5 sheets-sheet a. v F. P. MBYEYNBER'G lmmm` KILN.

No. 412.3199.V Patented oct. a, 1889.

ATTORNEYS.

(No Model.) 5 Sheets-Sheet 4.

P. 1.,MEYENBBRG.

Y BRICK KILN. No. 412,399. A Patented oct. 8, 1889. u

, WITNESSES;

Amonms.

(No Moagl.) "5 sheets-sheet 5.

P. P. 'MEYENBBRG'- f BRICK KILN'. 9 No. 412,399. Patented Oct. 8,1889.

' yUNITED STATES PATENT OFFICE i FRANZ P. MEYENBERCr,V OF CHICAGO, ILLINOIS.

BRICK-KLN.

-srEorFroA'rroN forming part of Letters Patent No. 412,399, dated october e, 1889. Application filed December 28, 1887. Renewed March 18, 1889. Serial No. 303,196. (No model.)

To all' whom t may concern: Be it known that I, FRANZ P. MEYENBERG, of Chicago, in the county of Cook and State of Illinois, have invented a new and Improved Brick and Pottery Kiln, of which the following is a full, clear, and exact description.

My inventionrelates to the construction of a continuous-b urnin g kiln arranged upon new and improved principles, whereby the heat delivered to the kiln is equalized and freed from all impurities in the form of gas, smoke, and incoinbustible particles-such as ashes-Y and wherebyY all excess of heat employed in one kiln'is utilized in the succeeding kiln,in stead of passing o as usual up through the smoke-stack, the object of the invention being, as above intimated, to produce a uniform and equally-tempered heat, which obj ect is accomplished by intermixing and combining the heat from all the fire-places or furnaces,

together with the surplus heat from the preceding kiln, prior to the passage of the heat to the main body of the kiln.

A further object of the invention is, as above stated, to arrest all ashes or incombustible particlesl and to burn the gas and smoke before the heated ,currents come in contact with the Wares tobe burned or baked.

A still further object of theinvention is to distribute the heat equally throughout all parts of the kiln, and to protect the wares arranged atl or near the outer wall of the kiln from .any injurious effect which might arise from too close a contact with the extreme outer Wall; V'and to the ends above named the invention consists of a kiln provided with a combustion and mixing chamber, and having its main burning or baking chamber surrounded by a flue, the floor of said main burning or baking chamber being perforated by graduated perforations radiating from the center, the flue surrounding the main chamber being connected with a flue leading to the succeeding kiln, all as will be hereinafter more fully described, and lspecifically point-ed out in the claims.

Reference is to be had to the accompanying draWings,-forming a part of this specification, in which similar letters of reference indicate corresponding parts in all the figures.

Figure l is a centralsectional elevation of my improved form of kiln. Fig. 2 is' a plan View of the kiln, a portion of the roof being broken away to disclose the construction of the floor of the main chamber of the kiln. Fig. 3 is a sectional plan view taken on line w a; of Fig. l. Fig. 4 is a sectional plan view taken on line y y of Fig. l, and Fig. 5 is a sectional plan view taken on line .c e of Fig. 4l.

In constructing such a kiln as is illustrated in the drawings above referred to, .the general construction of the kiln being best shown in Fig. 1,1 provide an outer inclosing-wall A, provided with an opening B, adapted to be closed by a properly-constructed door. Just Within the Wall A there is a second wall C, formed with an opening corresponding to that of the opening B in the wall A., said opening being arranged to be closed by a door, the

kiln being covered by an arched roof D, in

which there are arranged openings a a, that are closed by traps or covers b.

At one side of the kiln I arrangeV the furnaces E, there being any desired number of said furnaces, all of which lead through flues c to a combustion or mixing chamber F, as A best shown in Figs. l and 4, the products of combustion being supplied with fresh air, which enters through passages c, that are arranged as best shown in Figs. l and 3, the' idea of so supplying the combustion-chamber with fresh air being to perm it of a perfect combustion of the smoke and gases within said chamber, so that the heated currents passing upward into the body of the kiln Will be purified and freed from all matter that would be likely to injure the wares contained within the kiln. After leaving the combustion-chamber the heated currents pass up through a flue Gr into an annular chamber II, that is arranged beneath the main floor I of the kiln, said main ioor being built upon piers d d, and being provided with numerous perforations e cie, the space over the flue Gbeing solid, however. An inspection of Figs. l and 2 will show that the apertures formed in the floor I are arranged in lines radiating from the cent'erof the floor7 and are so proportioned that the area of the apertures increases toward the outer wall of the kiln, the idea being to provide for an equal distribution of the heat ICO neath the floor I. After passing through the apertures e ein the iioor I the heated currents are carried upward, and are finally drawn over the top of the Wall C int-o the annular space h between the outer and the inner Walls of the kiln. This annular space constitutes the return-due and leads into a chamber K, arranged beneath the iioor of the combustionchamber F, the floor of said combustionchamber, and, indeed, all material above the chamber K, being supported by short pillars or columns Z ZZ, arranged within said chamber K, that portion of the floor of the compartment H that is above the combustion-chamber F being supported by similar columns Z Z', that are arranged Within said combustionchamber.

Leading from the center of the chamber K there is a ilue L, which carries the heated currents forward, as indicated by the arrows, through a flue N to the combustion-chamber of the next succeeding kiln, the iiue N connecting with a iiue similar to the fiue M, which leads into a iiue O, that conveys the heated currents into the chamber F, as clearly indicated in Fig. 1. heated currents from the furnace of each kiln are combined with the surplus heated currents from the preceding kiln, so that the said currents are tempered and equalized before being distributed to the main chamber of the kiln.

In order rthat the draft Within the returnflue h may be regulated, I form openings o o o through the wall A, and in order that the kiln may be gradually cooled when desired I form other openings in the roof or ceiling of the kiln, which, as before stated, are provided With covers b.

As shown in Fig. 1, the fiue M is provided with a damper I), arranged as indicated or in any manner desired.

Such being the general construction and arrangement of my improved form of kiln, it will readily be understood that the heat delivered through the iiue G to the chamber H, and from there distributed throughout the main body of the kiln, may be tempered and regulated, as required, by the admission of hot or Warm air from the kiln, discharging its Surplus heat through the iiue M, and it will be appreciated that the heat from all of the furnaces is led into the mixing-chamber F, there to be intermingled and combined, and to be led from such mixing-chamber to a point beneath the center of the main kilnchamber, from which point it is led out and Y distributed equally through the main kilnchamber, entering through apertures which gradually increase in size toward the outer Wall of the iiue, and as the main kiln-chamber is surrounded by the doWndraft-iiue it will be understood that the Wares placed in close proximity to the defining-Walls of the It will thus be seen that the kiln-chamber will be protected from any injurious effect of dampness or of cold from the outside atmosphere.

Another and very material advantage of my improved construction is that by the use of a combustion or mixing chamber-such as F-the gases generated will all be consumed, and consequently all of the heat-producing materials contained in the fuel will be utilized. Then, too, the heat ordinarily Wasted is conveyed to the succeeding kiln, there to be intermingled With the heat of said kiln and a second time utilized for the purpose of baking or burning the Ware stored in the kiln-chamber; also, by my larrangement of air-inlets upon the sides, top, and bottom of the kiln I am able to increase or decrease the velocity of the current passing through the kiln-chamber, or to check the velocity of the heated current at any point required, thereby elfectually regulating the heat at any point desired.

Having thus fully described my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. In a kiln, the combination, with the main chamber of a mixing-chamber in communication with the kiln-furnace and a distributing chamber arranged beneath the main chamber and connected with the mixing-chamber by a Hue, substantially as described. l

2. In a kiln, the combination, With a main kiln-chamber, of a mixing-chamber in connection with the ki1n-t'urnaces,an interposed distributing-chamber, and a retu rn-lue practically surrounding the main kiln-chamber, substantially as described.

3. In a kiln, the combination, with a main kiln-chamber, of a mixing-chamber, an interposed distributing-chamber, and areturn-flue practically surrounding the mainv kiln-chambcr and leading to the mixing-chamber of the next Succeeding kiln, substantially as de scribed.

4. In a kiln, the combination, with the main kiln-chamber, of a mixing-chamber in communication with the furnace of the kiln, a fresh-air passage leading to the mixingchamber, and an interposed distributingchamber, substantially as described.

5. In a kiln, the combination, with the main kiln-chamber, of a mixing-chamber in connection With the kiln-furnace and with the escape-iiue of the preceding kiln, an interposed distributing-chamber, anda returniiue surrounding the main kiln-chamber and provided withair-passages o o, substantially as described.

FRANZ P. MEYENBERG.

Witnesses:

WYLLYs S. ABBOT, GEORGE H. HoLToN.

IOO

IIO 

